The new previews feature also allows users to even view message attachments in the same preview pane, without having to double-click an attachment to open it in the appropriate viewer.
For example, in Outlook, users can view the contents of a email message without the need to open it, they can need to select the message in mail folder’s list view and outlook will render the email and display the message in preview pane.
The previewers which supported by the preview handlers allow users to view or display the contents of documents, emails, messages, attachments, workbooks, videos, audios, presentations and other supported files on screen, without having to open it. If you’re using Microsoft Office 2007 or later versions, you will notice that it has a nice and handy feature called previews.
